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Dutch Iris are one of the most elegant, striking bulbs with long stems and vibrant blue or yellow flowers. They are best planted in clumps amongst other perennials or shrubs, and lifted every year especially if the summers are wet.
Watering - normal watering is required during dry weather.
Fertilising - animal manure, blood and bone, or a complete fertiliser should be worked through the soil before planting.
Lifting and storage - dig bulbs after the foliage has died down completely and store in a warm, airy position. Dust with an insecticide to control aphids. Can be left in for two seasons, however they should be top-dressed with animal manure or blood and bone in early Autumn.
Pests - watch for aphids and spray with an insecticide if necessary.
Tips - prefers soil or pots with good drainage.